New Health Models Q&A Men’s Health

Why is the glans black and purple?

Asked by:Amara

Asked on:Mar 29, 2026 09:44 AM

Answers:1 Views:395
  • Kelly Kelly

    Mar 29, 2026

    The dark purple color of the glans may be caused by repeated friction or prolonged erection, masturbation, trauma or inflammatory stimulation. Keep the area clean and hygienic and avoid scratching or rubbing.

    1. Physiological reasons 1. Be subject to friction

    Wearing underwear that is too tight or poor personal hygiene may cause the glans to be rubbed, causing redness, swelling or pain, resulting in the glans turning black and purple.;

    2. Penile erection lasts for a long time

    During sexual intercourse, if the penis is erect for a long time, the glans will be congested for a long time, resulting in a decrease in blood oxygen content, and the glans will become purple.;

    3. Caused by masturbation

    If you have an irregular sex life and masturbate frequently, your penis may be irritated. Masturbation may cause your penis to become red or swollen. If the local blood circulation is not smooth, it may also cause the glans of your penis to turn black and purple.

    2. Pathological causes 1. Received trauma

    Trauma to the penis will be accompanied by swelling or pain, and it will also cause local blood circulation to be blocked, coagulation will accumulate in the glans area, and the glans will turn black and purple.;

    3. Inflammation stimulation

    Long-term poor personal hygiene may lead to bacterial infection, or inflammation may cause redness, swelling, and heat pain in the glans. If inflammation persists for a long time, it may cause congestion or hypoxia in the local tissue, resulting in the glans turning black and purple.

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